Right-angle power transmission



IIJw. DAVIS.

RIGHT ANGLE POWER TRANSMISSION.

APPLIGNTION FILED MAR. 17, I919.

1,351,470. Paten ed Aug. 31, 1920.

I/IIIII'IIIIII/IA'IA Q UNITED? wmem.

ROBERT WILLIAM. DAVIS," or HILTONIA, NEW Ji inset.

R -AN E IQWER R NSM S SIQN-T To all whom it may concern: i.

, ,Be it known. that I, ROBERT WIL IAM DAVIS, a citizen of theUnited States residing at Hiltonia, in the county of Essex and State of New Jersey, have invented certain new and' useful Improvements Right-Angle Power Transmission, of which the following is aufull, clear, and, exact specification.

This invention relates to transmission gearing, and has'for its -object to provide improved means for transmittlng power from a driving shaft to another shaft arranged atright angles thereto. I A special object is to provide a right angle transmission that is four times as strong as asingle bevelgear meshing with a single bevel pinion, without increasing the diameter of the connectionto any great extent. "Other objects will appear as thedescription proceeds.

T he invention will be first hereinafterdescribed in connection with the accompanying drawings, which constitute part of this specification, and then more speclfically defined inthe claims at the end of the descrip tion. .In the accompanying drawings, wherein similar reference characters are used to des Y ignate corresponding parts throughout the several view's:' a Figure 1 1s a sectlonal View takenaxlally of thedriving and driven shafts through the gear connectionsiw Fig; 2 is a section on; the line "I:I II of F' g. l and I.Fig. a is a season-til the v11 m; III-III, (if

Fig.1; s w a .1

The driving shaft .1 carries .abevel gear 3 r splined thereto, as ate, and arranged atone side of a stationary frame 5' in-which are mounted bevel pinions 6 and 7 on pins 8, said pinions meshing with the gear 3 at diametrically oppositevpoints A reduced end portion2of the shaft-1 extends through and heyondthe frame 5, as shown, and on the portion that projects beyond said frame there is mounteda tubular shaft 10 on which iSsplined at '11 a bevel gear '9; facing the from said ear 3. a

V The shaft extension 2ai1d tubular shaft 10, which is loosely mounted around it, both extend into a casing- 12in which 'is a-rranged a bevel pinion 13 splined at lt onthe tubular shaft'lO. The shaft extension 2passes through a two-part spider in the casing and Specification of Letters Patent.

v M g 7 gPatentedAug.31 1920, Application fileil Mareh 17, 11119. Serial at. 283,141. 1

walhof said casing. 'Splin'ed at 26 on the extremity of the shaft 2 is abevel'pinionf25 fac ng toward the pinion 13; and bothof said pinions mesh at diametrically opposite ,a points with facing bevel gear s15 and '19 [he supplementalgearil5 is mounted one stud 16 projectingfrom the s'ec'tionlz ofithe spider, while-the gear 19 isfmounted on the end of the'driven shaft 20 whichenters'the casing 12 through a cover 21 which secured in place by screws The gear 19 is, Y

of course, splined on thesha'ft 20, as at 34, i

and the inner end of the shaft is preferably ournaled on ast'ud 23projecting from the section 18 of the spideix it being understood that the two sections 17" and-f18"of the spider are assembled from opposite sides of the shaftiz and held togeth r by screwsjor bolts indicated .at 33in Fig.3.

The casing 12 also carries two additional mounted on pins 28 andBO, respectively, and mesh with the gears 15 "and 19 'atdiametri bevel'pinions or gears 27 and" 29 which are ions 13'an'd 25. j The arms 81 of-the spider are secured to the outerj walls of the casing,

12 byscrews 3,2. e When the driving shaft 1 is rotated. power will be transmitted through gear '3, pinions 6 and/7, gear ,9, hollow shaft 10, and pinion l3-to the gear 19 'on thegdriven shaft 20.

from the driving shaft as just described is also given up by the pinions 13 and 25 to the gear "15 whichin turn transmit it w through the pinions27 and 29 to the geari19,

' so that there art four power driven pinions in mesh -',with said gear 19 on the driven:

shaft, giving four the strength of a single'bevel gear and pm on; lin trac ng the op erjatiomof thefdevlce, as JllStTdGSCIlbQd, 1t ,1

should, be remembered that'the frame 5"is stationary, th'at'there is alo ad on the driven a: 5 shaft20 and that the gears are loosefittlng.

The gear1 9 will, therefore, lag behind until the .gear13 catohes'up and helps 1t along owing to the work performed by the gears ting of the gears 131'an d 25', 'when, thej gear 19 lags behind, the gear 15,,- which s turned by said gears 13 and 25", willturn gears 27 i 6, 7 and 9. Again,;owing'to the loose fit:

and 29, and said last mentioned gears will v I so cally opposite; points and between the pincatch up with gear 19 and still further help it along. Having thus described my 1 invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. The combination with a driving shaft to one another, of a gear fast on the driven shaft, a hollow shaft mounted loosely aroundthe driving shaft, a gear fast on said. hollow shaft and meshing with said gear on the driven shaft, a gear fast on the driving shaft and also meshing with said gear on the driven shaft at a'point diametrically opposite to the gear on'the hollow shaft, and means for actuating said hollow shaft from the'driving shaft and'in the opposite direction for the purpose specified.

3. The combination with a driving shaft and adriven shaft arranged at right angles to oneanother', of a gear fast on the driven shaft, a hollow shaft ,mounted loosely around the driving shaft, a gear fast. on the driving shaft and meshing with the gear on the driven shaft, a gear fast on the hollow shaft and also meshing'with the gear on the driven shaft, means, independent of said gears. which mesh with. the. gear on the driven shaft, for actuating the hollow shaft from the driving shaft, a'supplemental gear also meshing with the gears on the driving and hollow'sh'afts, and an additional gear interposed between and meshing 'witli' said supplemental gear and the gear on the driven shaft. s I v I 4. The combination uth 'a driving shaft and a driven shaft arranged at right angles e to one another, of a gear fast on the driven shaft, a gear fast on the driving shaft and meshing with said gear on the driven shaft, a supplemental gear also meshing with the gear :on the drivingshaft, and a plurality of additional gears'meshing with the supplemental gear and the gear on the driven shaft. I r

5. The combination with a driving shaft and a driven shaft arranged at right angles to. one another, of a gear fast on the driven shaft, a hollow shaft loosely mounted around the driving shaft, a gear fast on the hollow shaft and meshing with the gear on' the driven shaft, means,'independentof said gear which meshes with the gear on the driven shaft, for actuating'the hollow shaft from the drivinglshaft,.a supplementalgear also meshing with the gear on the hollow shaft, and a plurality of additional gears meshingwith said supplemental gear and the gear on the driven shaft.

6. The combination with a driving shaft and a driven shaft arranged at right angles to one another, of a gear fast on the driven shaft, a hollow shaft mounted loosely around the driving shaft, a gear faston the driving shaft andmeshing with the gear on the driven shaft, a gear fast on the hollow shaft and also meshing with the gear on the driven shaft, means, independent of said gears which mesh with the gear on the driven shaft, for actuating thehollow shaft from the driving shaft, a supplemental gear also meshing with the'gears on the driving and hollow shafts, and a pair ofaddition al gears meshing with the supplemental gear and the'g ear on' the driven shaft, said additional gears being each arranged between the gear on the hollow shaft and the gear on the driving shaft and at diametrically opposite points on the gear carried by'the driven shaft. f i j 7. The combination with a driving shaft andja driven shaft arranged at right angles to one an'other, of agear fast onthe driven shaft, a plurality of gears meshing with said gear and each operatively connected up to be actuated by the driving shaft, a. casing housing said gears, and'a removable cover for said casing in which the driven shaft is journaled. I i 1 8. The combination with a driving shaft and a driven shaft arranged at'right angles to'one another, of a gear fast on the driven shaft, a plurality of gears meshing with the ,gear on the driven shaft and each operatively connected up to be actuated by-the driving shaft, a casing housing said gears,

and a spider arranged'in the casing for re tainingthe gears n working posit ons, said; spider comprising a central portion. through which the driving shaft is passed, and arms extending radially from said central portion between the gears and connected to the casing. 9. The'combinationwith a driving shaft and a driven shaft arranged at. right angles to one another, of a gear fast on the driven shaft, a plurality of gears meshing with said gear and each operatively connected up to be actuated by the driving shaft, a casing housing said gears,a spider arranged in the casing for retaining the gears in working positions, and means on the spider to jour nal the driven shaft. 2

name to this specification. v

ROBERT WIL'LIAM DAVIS.

In testimony whereof Ihave signed my 7 

